1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.api.config.internal;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;
import javax.annotation.Nullable;
import javax.crypto.spec.GCMParameterSpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
final class AesGCMCipher extends AesCipher {
private static final int GCM_TAG_LENGTH_IN_BITS = 128;
private static final int GCM_IV_LENGTH_IN_BYTES = 12;
private static final String CRYPTO_ALGO = "AES/GCM/NoPadding";
AesGCMCipher(@Nullable String pathToSecretKey) {
super(pathToSecretKey);
}
@Override
public String encrypt(String clearText) {
try {
javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance(CRYPTO_ALGO);
byte[] iv = new byte[GCM_IV_LENGTH_IN_BYTES];
new SecureRandom().nextBytes(iv);
cipher.init(javax.crypto.Cipher.ENCRYPT_MODE, loadSecretFile(), new GCMParameterSpec(GCM_TAG_LENGTH_IN_BITS, iv));
byte[] encryptedText = cipher.doFinal(clearText.getBytes(StandardCharsets.UTF_8.name()));
return Base64.encodeBase64String(
ByteBuffer.allocate(GCM_IV_LENGTH_IN_BYTES + encryptedText.length)
.put(iv)
.put(encryptedText)
.array());
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
@Override
public String decrypt(String encryptedText) {
try {
javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance(CRYPTO_ALGO);
ByteBuffer byteBuffer = ByteBuffer.wrap(Base64.decodeBase64(StringUtils.trim(encryptedText)));
byte[] iv = new byte[GCM_IV_LENGTH_IN_BYTES];
byteBuffer.get(iv);
byte[] cipherText = new byte[byteBuffer.remaining()];
byteBuffer.get(cipherText);
cipher.init(javax.crypto.Cipher.DECRYPT_MODE, loadSecretFile(), new GCMParameterSpec(GCM_TAG_LENGTH_IN_BITS, iv));
byte[] cipherData = cipher.doFinal(cipherText);
return new String(cipherData, StandardCharsets.UTF_8);
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
}
|
